COLONIAL GUN ART PART 4, ENGRAVING with JAMES TURPIN DVD. Run time 1 hour 15 minutes. In part four of this series Mr. Turpin shows the tools & methods used to add the fine engraving found on early guns. He expalins that most early masters did their beautiful work with just one tool! Several different tools are demonstrated to show the different effects that come from them. The final feature is a time-lapse of Mr. Turpin engraving a very elaborate patch box, A must see!